A wrong action attributable to bad judgment or ignorance or inattention:
— She was quick to point out my errors.

synonyms: fault, mistake.

Roget 495: error, fallacy; misconception, misapprehension, misstanding^†, misunderstanding; inexactness etc. adj.; laxity; misconstruction etc. (misinterpretation) 523; miscomputation etc. (misjudgment) 481; non sequitur etc. 477; mis-statement, mis-report; mumpsimus^†.    mistake; miss, fault, blunder, quiproquo, cross purposes, oversight, misprint, erratum, corrigendum, slip, blot, flaw, loose thread; trip, stumble etc. (failure) 732; botchery etc. (want of skill) 699^†; slip of the tongue, slip of the lip, Freudian slip; slip of the pen; lapsus linguae [Lat.], clerical error; bull etc. (absurdity) 497; haplography^†.    illusion, delusion; snare; false impression, false idea; bubble; self-decit, self-deception; mists of error.    heresy etc. (heterodoxy) 984; hallucination etc. (insanity) 503; false light etc. (fallacy of vision) 443; dream etc. (fancy) 515; fable etc. (untruth) 546; bias etc. (misjudgment) 481; misleading etc. v.. ... show more

Roget 984: heterodoxy; error etc. 495; false doctrine, heresy, schism; schismaticism^†, schismaticalness; recusancy, backsliding, apostasy; atheism etc. (irreligion) 989^†.    bigotry etc. (obstinacy) 606; fanaticism, iconoclasm; hyperorthodoxy^†, precisianism^†, bibliolatry^†, sabbatarianism^†, puritanism; anthropomorphism; idolatry etc. 991; superstition etc. (credulity) 486; dissent etc. 489.    sectarism^†, sectarianism; noncomformity^†; secularism; syncretism^†.    [religious sects.] protestantism, Arianism^†, Adventism, Jansenism, Stundism^†, Erastianism^†, Calvinism, quakerism^†, methodism, anabaptism^†, Puseyism, tractarianism^†, ritualism, Origenism, Sabellianism, Socinianism^†, Deism, Theism, materialism, positivism, latitudinarianism etc. High Church, Low Church, Broad Church, Free Church; ultramontanism^†; papism, papistry; monkery^†; papacy; Anglicanism, Catholicism, Romanism; popery, Scarlet Lady, Church of Rome, Greek Church.    paganism, heathenism, ethicism^†; mythology; polytheism, ditheism^†, tritheism^†; dualism; heathendom^†.    Judaism, Gentilism^†, Islamism, Islam, Mohammedanism, Babism^†, Sufiism, Neoplatonism, Turcism^†, Brahminism, Hinduism, Buddhism, Sabianism, Gnosticism, Hylotheism^†, Mormonism; Christian Science.    heretic, apostate, antichrist^†; pagan, heathen; painim^†, paynim^†; giaour^†; gentile; pantheist, polytheist; idolator.    schismatic; sectary, sectarian, sectarist^†; seceder, separatist, recusant, dissenter; nonconformist, nonjuror^†.    bigot etc. (obstinacy) 606; fanatic, abdal^†, iconoclast.    latitudinarian, Deist, Theist, Unitarian; positivist, materialist; Homoiousian^†, Homoousian^†, limitarian^†, theosophist, ubiquitarian^†; skeptic etc. 989.    Protestant; Huguenot; orthodox dissenter, Congregationalist, Independent; Episcopalian, Presbyterian; Lutheran, Calvinist, Methodist, Wesleyan; Ana^†, Baptist; Mormon, Latter-day Saint^†, Irvingite, Sandemanian, Glassite, Erastian; Sublapsarian, Supralapsarian^†; Gentoo, Antinomian^†, Swedenborgian^†; Adventist^†, Bible Christian, Bryanite, Brownian, Christian Scientist, Dunker, Ebionite, Eusebian; Faith Curer^†, Curist^†; Familist^†, Jovinianist, Libadist^†, Quaker, Restitutionist^†, Shaker, Stundist, Tunker &c.; ultramontane; Anglican^†, Oxford School; tractarian^†, Puseyite, ritualist; Puritan.    Catholic, Roman, Catholic, Romanist, papist.    Jew, Hebrew, Rabbinist, Rabbist^†, Sadducee; Babist^†, Motazilite; Mohammedan, Mussulman, Moslem, Shiah, Sunni, Wahabi, Osmanli.    Brahmin^†, Brahman^†; Parsee, Sufi, Buddhist; Magi, Gymnosophist^†, fire worshiper, Sabian, Gnostic, Rosicrucian etc. ... show more

Roget 945: vice; evil-doing, evil courses; wrongdoing; wickedness, viciousness etc. adj.; iniquity, peccability^†, demerit; sin, Adam^†; old Adam^†, offending Adam^†.    immorality, impropriety, indecorum, scandal, laxity, looseness of morals; enphagy^†, dophagy^†, exophagy^†; want of principle, want of ballast; obliquity, backsliding, infamy, demoralization, pravity^†, depravity, pollution; hardness of heart; brutality etc. (malevolence) 907; corruption etc. (debasement) 659; knavery etc. (improbity) 940^†; profligacy; flagrancy, atrocity; cannibalism; lesbianism, Sadism.    infirmity; weakness etc. adj.; weakness of the flesh, frailty, imperfection; error; weak side; foible; failing, failure; crying sin, besetting sin; defect, deficiency; cloven foot.    lowest dregs of vice, sink of iniquity, Alsatian den^†; gusto picaresco [It].    fault, crime; criminality etc. (guilt) 947.    sinner etc. 949.    [Resorts] brothel etc. 961; gambling house etc. 621; joint [Slang], opium den, shooting gallery, crack house.    ... show more

Roget 947: guilt, guiltiness; culpability; criminality, criminousness^†; deviation from rectitude etc. (improbity) 940^†; sinfulness etc. (vice) 945.    misconduct, misbehavior, misdoing, misdeed; malpractice, fault, sin, error, transgression; dereliction, delinquency; indiscretion, lapse, slip, trip, faux pas [Fr.], peccadillo; flaw, blot, omission; failing, failure; break, bad break! [U.S.], capital crime, delictum [Lat.].    offense, trespass; misdemeanor, misfeasance, misprision; malefaction, malfeasance, malversation; crime, felony.    enormity, atrocity, outrage; deadly sin, mortal sin; deed without a name" [Macbeth]. corpus delicti.    ... show more

Dutch: abuis, afdwaling, feil, fout, lapsus, onjuistheid, vergissing, verwarring
Polish: pomylenie się, potknięcie się, omylenie się

Inadvertent incorrectness.

synonym: erroneousness.

Polish: omyłkowość, mylność

A misconception resulting from incorrect information.

synonym: erroneous belief.

baseball A failure of a defensive player to make an out when normal play would have sufficed.

synonym: misplay.

Dutch: afwijking, fout
Polish: błąd

Departure from what is ethically acceptable.

synonym: wrongdoing.

computer science The occurrence of an incorrect result produced by a computer.

synonym: computer error.

Part of a statement that is not correct:
— The book was full of errors.

synonym: mistake.